Finding the Fourth Proportional to 315,234.72, 435,021.78 and 179,268.72

Step by Step Solution

1. Step 1: Write the proportion equation
   315,234.72 : 435,021.78 = 179,268.72 : x
2. Step 2: Convert to fraction form
   315,234.72/435,021.78 = 179,268.72/x
3. Step 3: Cross multiply
   315,234.72x = 435,021.78 × 179,268.72
4. Step 4: Simplify right side
   315,234.72x = 77,985,797,672.72
5. Step 5: Solve for x
   x = 77,985,797,672.72/315,234.72
6. Step 6: Final answer
   x = 247,389.62